Question

Which of the following is capable of DE-phosphorylating molecules?

1) Protein kinase
2) Protein phosphatase
3) Protein ligase
4) Protein kinase and protein phosphatase

Answer 1

Protein phosphatase is capable of dephosphorylating molecules.

Step-by-step explanation:

The correct answer is 2) Protein phosphatase.

Protein phosphatases are enzymes that remove phosphate groups from proteins, a process known as dephosphorylation. They play a critical role in regulating cellular processes by counteracting the actions of protein kinases, which add phosphate groups to proteins. By removing phosphate groups, protein phosphatases can turn off the function of phosphorylated proteins, allowing cells to fine-tune their responses to signals and maintain homeostasis.